package com.lvt.design.pattern.action.observer.p2pdemo;

/**
 * desc：class
 *
 * @author LT
 * @date 2022/12/4
 */
public class PromotionServiceImpl implements PromotionService {
    @Override
    public void issueNewUserExperienceCase(long userId) {
        //...
    }
}
